CN110521226A - A kind of communication means and device - Google Patents

A kind of communication means and device Download PDF

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Publication number
CN110521226A
CN110521226A CN201780089737.7A CN201780089737A CN110521226A CN 110521226 A CN110521226 A CN 110521226A CN 201780089737 A CN201780089737 A CN 201780089737A CN 110521226 A CN110521226 A CN 110521226A
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Prior art keywords
access network
network device
processing
identifier
data transmission
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CN201780089737.7A
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Chinese (zh)
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CN110521226B (en
Inventor
李秉肇
权威
张戬
柴丽
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN202111147085.2A priority Critical patent/CN113873490A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the present application provides a kind of communication means and device, it is related to the communications field, the described method includes: the first data transmission information that the first access network equipment receiving terminal apparatus is sent, the first data transmission information carries first identifier and upstream data, and the first identifier includes the mark of anchor point access network equipment and the mark for identifying the terminal device in the anchor point access network equipment for identification；First access network equipment carries out the first processing to the upstream data received according to the channel configuration information of the terminal device, first processing includes at least one: physical layer process, MAC layer processing, the processing of radio link layer control layer；And first processing does not include decryption and/or completeness check；First access network equipment sends the second data transmission information to the anchor point access network equipment, and second data transmission information carries the first identifier and the described first treated upstream data.The application can reduce the signaling that terminal device generates in moving process and time delay expense.

Description

Communication method and device Technical Field
The present invention relates to the field of communications, and in particular, to a communication method and apparatus.
Background
With the development of communication technology, terminal devices have a third state in addition to a connected state and an idle state. When the terminal device is in a connected state, the terminal device stores the context information of the terminal device, and switching based on control of the access network device can be executed. When the terminal device is in an idle state, the terminal device releases its own context information, and cell-based reselection may be performed. When the terminal device is in the third state, the terminal device stores its own context information and can perform cell-based reselection operation, and meanwhile, the connection information of the terminal device is stored in the anchor access network device, and the connection information of the terminal device includes the context information of the terminal device and the core network connection information.
When the terminal device is in the third state, the terminal device stores management area information configured by the anchor access network device, and the terminal device needs to inform the anchor access network device when moving out of the management area corresponding to the management area information. The third state may be called an inactive state, a lightly connected state, a deactivated state, a low overhead state, etc. The management Area may also be called a Paging Area (Paging Area), an access network location tracking Area, etc.
And when the terminal equipment in the third state moves to a cell of other access network equipment and needs to send data, initiating a connection recovery process to the service access network equipment, wherein the service access network equipment can inform the anchor access network equipment to switch the context of the terminal equipment to the service access network equipment. When the terminal equipment changes one service access network equipment, the context transfer and the interface switching are executed once; when the anchor access network device is changed every time, the key of the terminal device needs to be updated when the anchor access network device is changed, so that the terminal device generates more signaling and time delay overhead in the moving process.
Disclosure of Invention
The embodiment of the invention provides a communication method and device.
In a first aspect, an embodiment of the present invention provides a communication method, including: a first access network device receives first data transmission information sent by a terminal device, wherein the first data transmission information carries a first identifier and uplink data, and the first identifier comprises an identifier for identifying an anchor access network device and an identifier for identifying the terminal device in the anchor access network device; the first access network device performs first processing on the received uplink data according to the channel configuration information of the terminal device, where the first processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the first processing does not include decryption and/or integrity checking; and the first access network equipment sends second data transmission information to the anchor access network equipment, wherein the second data transmission information carries the first identifier and the first processed uplink data. The data transmission information carries a first identifier and data which comprise identification anchor access network equipment, so that the first access network equipment and the anchor access network equipment respectively process the received data, and the terminal equipment keeps the anchor access network equipment unchanged and can transmit the data in the moving process; therefore, the signaling resource waste caused by key updating and data centralized processing of the terminal equipment due to the replacement of the anchor access network equipment in the traditional method is reduced.
In a possible implementation manner, before the first access network device sends the second data transmission information to the anchor access network device, a common channel is pre-established between the anchor access network device and the first access network device and/or channel configuration information for data transmission by a third state terminal device is pre-configured, and the first access network device sends the second data transmission information to the anchor access network device by using the common channel and/or the channel configuration information. The method and the device have the advantages that the common channel is established in advance and/or the channel configuration information used for the data transmission of the third-state terminal device is configured, so that the transmission time delay of the data transmission of the first access network device and the anchor point access network device is reduced, the universality is realized for the terminal device, and the signaling resource is saved.
In a possible implementation manner, the first access network device sends a context request message to the anchor access network device, and carries the second data transmission information in the context request message to send to the anchor access network device.
In one possible implementation, the channel configuration information is obtained by at least one of: reading the predefined channel configuration information; receiving a channel configuration index from the terminal equipment, and determining the channel configuration information according to the channel configuration index; obtaining the channel configuration information from the anchor access network device.
In a possible implementation manner, the first access network device receives third data transmission information sent by the anchor access network device; the third data transmission information carries the first identifier and the third processed downlink data, and the third processing includes at least one of the following: medium access control layer processing, wireless link layer control layer processing and packet data convergence protocol layer processing; the first access network performs fourth processing on the received downlink data after the third processing, where the fourth processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the fourth processing does not include decryption and/or integrity checking; and the first access network equipment sends the fourth processed data to the terminal equipment according to a second identifier, wherein the second identifier is a special identifier used by the terminal equipment in the current cell.
In a second aspect, an embodiment of the present invention provides a communication method, including: a terminal device receives a first message sent by an anchor access network device, wherein the first message carries a first identifier, and the first identifier comprises an identifier for identifying the anchor access network device and an identifier for identifying the terminal device in the anchor access network device; the terminal equipment sends first data transmission information to the first access network equipment, wherein the first data transmission information carries a first identifier and uplink data.
Optionally, the first message further carries a channel configuration index.
In a possible implementation manner, after the terminal device sends the first data transmission information to the first access network device, the method further includes: the terminal equipment receives downlink data which is processed by the first access network equipment in a fourth way according to the second identification; wherein the fourth processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the fourth processing does not include decryption and/or integrity checking; the second identifier is a dedicated identifier used by the terminal device in the current cell.
In a possible implementation manner, the terminal device does not monitor the second identifier any more based on the first condition, and ends the data transmission process. Wherein the first condition comprises: after receiving the downlink data, the terminal equipment does not receive the downlink data within a period of time and does not have any uplink data to be sent; or the terminal equipment receives a release indication message, and the release indication message indicates that the terminal equipment does not monitor the second identifier any more.
In a third aspect, an embodiment of the present invention provides a communication method, including: the method comprises the steps that anchor access network equipment sends a first message to terminal equipment, wherein the first message carries a first identifier, and the first identifier comprises an identifier used for identifying the anchor access network equipment and an identifier used for identifying the terminal equipment in the anchor access network equipment; the anchor access network device receives second data transmission information sent by a first access network device, where the second data transmission information carries the first identifier and uplink data after first processing performed by the first access network device, and the first processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the first processing does not include decryption and/or integrity checking; and the anchor access network device performs second processing on the first processed uplink data and sends the second processed uplink data to core network equipment, wherein the second processing includes at least one of the following: medium access control layer processing, radio link layer control layer processing, and packet data convergence protocol layer processing.
Optionally, the first message further carries a channel configuration index.
In a possible implementation manner, before the anchor access network device receives the second data transmission information sent by the first access network device, a common channel is pre-established between the anchor access network device and the first access network device and/or channel configuration information for data transmission by a third state terminal device is pre-configured, and the anchor access network device receives the second data transmission information sent by the first access network device by using the common channel or the channel configuration information.
In a possible implementation manner, the anchor access network device receives a context request message sent by the first access network device, and the second data transmission information is carried in the context request message.
In a possible implementation manner, after the anchor access network device sends the second processed uplink data to the core network device, the method further includes: the anchor access network equipment receives downlink data sent by the core network equipment; the anchor access network device performs third processing on the received downlink data, where the third processing includes at least one of: medium access control layer processing, wireless link layer control layer processing and packet data convergence protocol layer processing; and the anchor access network device sends third data transmission information to the first access network device, wherein the third data transmission information carries the first identifier and the downlink data after the third processing.
In a fourth aspect, an embodiment of the present application provides a communication method, including: a terminal device receives a first message sent by an anchor access network device, wherein the first message carries a first identifier, and the first identifier comprises an identifier for identifying the anchor access network device and an identifier for identifying the terminal device in the anchor access network device; the terminal equipment receives a paging message sent by first access network equipment, wherein the paging message carries an indication message and is used for indicating whether the terminal equipment needs to perform state conversion or not; and the terminal equipment judges whether state conversion is needed or not according to the indication message.
Optionally, the first message further carries a channel configuration index.
In a possible implementation manner, after the terminal device determines that state transition is not required according to the indication message, the terminal device sends the first identifier to the first access network device.
Optionally, the first identifier is carried in a connection recovery message, and the connection recovery message also carries an indication for keeping the state of the terminal device unchanged. Or, the first identifier is carried in a mac header or a mac control element.
In a possible implementation manner, the terminal device receives, by using a second identifier, downlink data that is second processed by the first access network device; wherein the second processing comprises at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the second processing does not include decryption and/or integrity checking; the second identifier is a dedicated identifier used by the terminal device in the current cell.
Optionally, after the terminal device receives the second processed downlink data by using the second identifier, the terminal device sends uplink data to the first access network device.
In a possible implementation manner, the terminal device does not monitor the second identifier any more based on the first condition, and ends the data transmission process.
Optionally, the first condition includes: after receiving the downlink data, the terminal equipment does not receive the downlink data within a period of time and does not have any uplink data to be sent; or the terminal equipment receives a release indication message, and the release indication message indicates that the terminal equipment does not monitor the second identifier any more.
In a fifth aspect, an embodiment of the present application provides a communication method, including: the first access network equipment receives a paging message sent by anchor access network equipment, wherein the paging message carries an indication message and is used for indicating whether terminal equipment needs to perform state conversion or not; and the first access network equipment sends the paging message to the terminal equipment.
In a possible implementation manner, after the first access network device sends the paging message to the terminal device, the first access network device receives a first identifier sent by the terminal device, where the first identifier includes an identifier for identifying the anchor access network device and an identifier for identifying the terminal device in the anchor access network device; and the first access network equipment sends the first identifier to the anchor access network equipment.
In a possible implementation manner, after the first access network device sends the first identifier to the anchor access network device, the first access network device receives first data transmission information sent by the anchor access network device, where the first data transmission information carries the first identifier and downlink data after first processing by the anchor access network device, and the first processing includes at least one of: medium access control layer processing, radio link layer control layer processing, and packet data convergence protocol layer processing.
In a possible implementation manner, before the first access network device receives the first data transmission information sent by the anchor access network device, a common channel is pre-established between the anchor access network device and the first access network device and/or channel configuration information for data transmission by a third state terminal device is pre-configured, and the first access network device receives the first data transmission information sent by the anchor access network device by using the common channel and/or the channel configuration information.
Optionally, the first access network device receives a context request message sent by the anchor access network device, where the first data transmission information is carried in the context request message.
Optionally, the first data transmission information further carries a channel configuration index of the terminal device.
In a possible implementation manner, after the first access network device receives first data transmission information sent by the anchor access network device, the first access network device performs second processing on the first processed downlink data according to channel configuration information of the terminal device, where the second processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the second processing does not include decryption and/or integrity checking.
In a possible implementation manner, after the first access network device performs second processing on the received first processed downlink data according to the channel configuration information of the terminal device, the first access network device sends the second processed downlink data to the terminal device according to a second identifier, where the second identifier is a dedicated identifier used by the terminal device in the current cell; and the first access network equipment receives the uplink data sent by the terminal equipment.
In a possible implementation manner, after the first access network device receives the uplink data sent by the terminal device, the first access network device performs third processing on the received uplink data, where the third processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the third processing does not include decryption and/or integrity checking; and the first access network equipment sends second data transmission information to the anchor access network equipment, wherein the second data transmission information carries the first identifier and the uplink data after the third processing.
In a sixth aspect, an embodiment of the present application provides a communication method, including: the method comprises the steps that anchor access network equipment sends a first message to terminal equipment, wherein the first message carries a first identifier, and the first identifier comprises an identifier used for identifying the anchor access network equipment and an identifier used for identifying the terminal equipment in the anchor access network equipment; the anchor access network equipment receives downlink data sent by core network equipment; and the anchor access network equipment sends a paging message to the first access network equipment, wherein the paging message carries an indication message and is used for indicating whether the terminal equipment needs to perform state conversion or not.
Optionally, the first message further carries a channel configuration index.
In a possible implementation manner, after the anchor access network device sends the paging message to the first access network device, the anchor access network device receives the first identifier sent by the first access network device; the anchor access network device judges whether the terminal device is accessed from the first access network device, and performs first processing on downlink data received from the core network device, where the first processing includes at least one of: medium access control layer processing, radio link layer control layer processing, and packet data convergence protocol layer processing.
In a possible implementation manner, after the anchor access network device performs first processing on downlink data received from the core network device, the anchor access network device sends first data transmission information to the first access network device, where the first data transmission information carries the first identifier and the first processed downlink data.
In a possible implementation manner, before the anchor access network device sends the first data transmission information to the first access network device, a common channel is pre-established between the anchor access network device and the first access network device and/or channel configuration information for data transmission by a third state terminal device is pre-configured, and the anchor access network device sends the first data transmission information to the first access network device by using the common channel and/or the channel configuration information.
In a possible implementation manner, the anchor access network device sends a context request message to the first access network device, and the first data transmission information is carried in the context request message.
Optionally, the first data transmission information further carries a channel configuration index of the terminal device.
In a possible implementation manner, after the anchor access network device sends the first data transmission information to the first access network device, the anchor access network device receives second data transmission information sent by the first access network device, where the second data transmission information carries the first identifier and third processed uplink data, and the third processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the first processing does not include decryption and/or integrity checking; the anchor access network device performs fourth processing on the uplink data after the third processing, where the fourth processing includes at least one of the following: MAC layer processing, RLC layer processing and PDCP layer processing; and the anchor access network equipment sends the uplink data after the fourth processing to the core network equipment.
In a seventh aspect, an embodiment of the present application provides a communication apparatus, which executes the method in the first aspect or any one of the possible implementation manners of the first aspect. In particular, the apparatus comprises means for performing the first aspect or the method in any one of its possible implementations.
In an eighth aspect, an embodiment of the present application provides a communication apparatus, configured to execute the method in the second aspect or any one of the possible implementation manners of the second aspect. In particular, the apparatus comprises means for performing the second aspect or the method in any one of its possible implementations.
In a ninth aspect, an embodiment of the present application provides a communication apparatus, configured to perform the method of the third aspect. In particular, the apparatus comprises means for performing the third aspect or the method in any one of its implementation forms.
In a tenth aspect, an embodiment of the present application provides a communication apparatus for executing the method of the fourth aspect. In particular, the apparatus comprises means for performing the method of any one of the implementations of the fourth aspect or the fourth aspect.
In an eleventh aspect, embodiments of the present application provide a communication apparatus, configured to perform the method of the fifth aspect. In particular, the apparatus comprises means for performing the method of the fifth aspect or any one of its implementations.
In a twelfth aspect, an embodiment of the present application provides a communication apparatus configured to execute the method of the sixth aspect. In particular, the apparatus comprises means for performing the method of any one of the implementations of the sixth aspect or the sixth aspect.
In a thirteenth aspect, an embodiment of the present application provides a communication apparatus, which includes an input interface, an output interface, a processor, and a memory. The input interface, the output interface, the processor and the memory can be connected through a bus system. The memory is used for storing programs, instructions or codes, and the processor is used for executing the programs, instructions or codes in the memory, so that the communication device can complete the method in any possible implementation mode of the above aspects.
In a fourteenth aspect, embodiments of the present application provide a computer-readable storage medium on which a computer program (instructions) is stored, which when run on a computer, causes the computer to perform the method of any of the above aspects.
In a fifteenth aspect, the present application provides a chip system comprising a processor for enabling a communication device to perform the functions referred to in the above aspects, e.g. to receive or process data and/or information referred to in the above methods. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the communication device. The chip system may be constituted by a chip, or may include a chip and other discrete devices.
Drawings
Fig. 1 is a block diagram of a wireless communication system according to an embodiment of the present invention;
fig. 2 is a flowchart of a communication method according to an embodiment of the present invention;
fig. 3 is a flowchart of another communication method provided in an embodiment of the present application;
fig. 4 is a structural diagram of a communication device according to an embodiment of the present application;
fig. 5 is a structural diagram of a terminal device according to an embodiment of the present application;
fig. 6 is a block diagram of another communication apparatus provided in the embodiment of the present application;
fig. 7 is a structural diagram of another terminal device provided in the embodiment of the present application;
fig. 8 is a block diagram of another communication apparatus according to an embodiment of the present application;
fig. 9 is a block diagram of another communication apparatus according to an embodiment of the present application;
fig. 10 is a block diagram of another communication apparatus provided in the embodiment of the present application;
fig. 11 is a structural diagram of another terminal device according to an embodiment of the present application.
Detailed Description
The terminal device according to the embodiments of the present invention may be a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (e.g., a Radio Access Network, RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), an Access Point (Access Point), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), a Terminal Device (User Device), or a User Equipment (User Equipment).
The access Network device according to the embodiment of the present invention is a device that connects to a terminal device, receives data of the terminal device, and sends the data to a Core Network (CN). The access network equipment corresponds to different equipment in different systems. For example, the access Network device may be a Base Station (BS) and a Base Station Controller (BSC) in a 2G system, a Base Station (Node B) and a Radio Network Controller (RNC) in a 3G system, an evolved Node B (eNB or e-Node B) in a 4G system, and may also be a corresponding access Network device in a 5G system, which is not limited in this application.
In the architecture diagram of the wireless communication system shown in fig. 1, the terminal device is in the third state, the S1 interface thereof is anchored to the anchor access network device, and a management area is configured for the terminal device, where the management area includes a cell where the terminal device accesses the anchor access network device and one or more other cells except the cell. The process in which the terminal device moves within the management Area without notifying the network side of its location and when it moves out of the management Area, the network side needs to be notified of its location is called management Area Update or Paging Area Update (Paging Area Update). When the terminal device is in the third state, the terminal device may be located in a cell of the anchor access network device or may be located in a cell of another access network device.
The system architecture diagram of fig. 1 further includes a core network CN device. The CN device corresponds to different devices in different systems, for example, a Mobile Management Entity (MME) and/or a Serving GateWay (S-GW) in 4G, a Serving GPRS Support Node (SGSN) in 3G, a GateWay GPRS Support Node (GGSN), and the like. If the terminal device in the third state moves to the service range of the first access network device, when data needs to be sent, the terminal device initiates a connection recovery process to the first access network device, and the first access network device sends a context request (context request) of the terminal device to the anchor access network device and sends a path switching instruction to the CN, so as to switch the S1 connection of the terminal device to the first access network device.
In the moving process of the terminal device, context transfer and interface switching are executed once when the terminal device changes one first access network device, and the key of the terminal device is updated due to the change of the anchor access network device every time when the anchor access network device is changed, so that more signaling and time delay overhead are generated in the moving process of the terminal device.
In view of the above technical problem, an aspect of the present invention provides a communication method, as shown in fig. 2, where the data transmission method may be applied to the network architecture shown in fig. 1, and the method includes the following steps:
step 201: the anchor access network equipment sends a first message to the terminal equipment, wherein the first message contains a first identifier, and the first identifier comprises an identifier used for identifying the anchor access network equipment and an identifier used for identifying the terminal equipment in the anchor access network equipment.
Optionally, the first message further includes a channel configuration index. The channel configuration index is used for identifying the channel configuration information used by the terminal equipment in the third state. The channel configuration information at least includes one of a logical channel number used by the terminal device, a Medium Access Control (MAC) layer, Radio Link Control (RLC) layer configuration information, and Packet Data Convergence Protocol (PDCP) layer configuration information.
Besides, the anchor access network device also configures a management area for the terminal device. As previously described, the terminal device moves within the management area without notifying the anchor access network device.
Step 202: the terminal equipment sends first data transmission information to first access network equipment corresponding to a cell where the terminal equipment is located, wherein the first data transmission information carries a first identifier and uplink data.
In this embodiment, the terminal device is in the third state, the terminal device is in the connected state before the terminal device is in the third state, and the access network device corresponding to the cell where the terminal device is located is the anchor access network device in the connected state. When the terminal equipment enters a third state from a connection state, the anchor access network equipment configures a management area for the terminal equipment, wherein the management area comprises a cell of the terminal equipment accessed to the anchor access network equipment and one or more other cells except the cell.
The terminal device sends first data transmission information to a first access network device corresponding to a cell where the terminal device is currently located, and specifically, the terminal device may use a first identifier as a part of a data packet header and send the first access network device with uplink data; or, the terminal device may carry the first identifier in a Radio Resource Control (RRC) message, and send the RRC message and data to the first Radio access network device.
Before this, the terminal device needs to send a preamble sequence to the base station, where the preamble sequence is used to notify the first access network device to allocate resources to the terminal device according to the preamble sequence, and the terminal device transmits the first identifier and the uplink data by using the resources after receiving the resources. Meanwhile, the first radio access network allocates the second identifier to the terminal device when allocating the transmission resource. And the second identifier is a dedicated identifier which is allocated to the terminal by the base station and enables the terminal equipment to be used in the current cell.
Step 203: the first access network equipment carries out first processing on the received uplink data according to the channel configuration information of the terminal equipment.
After receiving the first identifier in the first data transmission information sent by the terminal device, the first access network device needs to send the first identifier to the terminal device again so that the terminal device can determine that the first access network device receives the first identifier. After receiving the first identifier, the terminal equipment confirms that the second identifier is used as a special identifier in the own cell.
Meanwhile, the first access network device performs first processing on the received uplink data according to the channel configuration information of the terminal device, wherein the channel configuration information can be obtained through the following three ways:
the first method comprises the following steps: reading predefined channel configuration information, for example, the first access network device presets predetermined channel configuration information for data transmission of the third state terminal device;
and the second method comprises the following steps: and receiving the channel configuration index from the terminal equipment, and determining the channel configuration information of the terminal equipment according to the channel configuration index.
Optionally, the anchor access network device pre-configures a channel configuration index for the terminal device, and sends the channel configuration index to the terminal device in step 201, and in step 201b, the first access network device obtains the channel configuration index and the channel configuration parameter from the anchor access network device, and the first access network device determines the channel configuration parameter used by the terminal device according to the channel configuration index received from the terminal device.
And the third is that: channel configuration information is obtained from an anchor access network device. And after receiving the first identifier, requesting the anchor access network equipment for the channel configuration information of the terminal equipment, and acquiring the channel configuration information.
Optionally, the first processing, performed by the first access network device on the received uplink data according to the channel configuration information of the terminal device, includes at least one of the following: physical layer processing, MAC layer processing and RLC layer processing; and the first processing does not include decryption and/or integrity checking.
The specific method for processing each layer can be implemented with reference to the prior art, for example:
the physical layer processing may include: hybrid Automatic Repeat reQuest (HARQ) is utilized to perform operations such as data transmission and combination, power control, mapping from a transmission channel to a physical channel, frequency and time synchronization, and the like.
The MAC layer processing may include: mapping from a logical channel to a physical channel, data scheduling, reporting of scheduling information, processing of a random access process, priority management of the logical channel, error correction through an HARQ mechanism and the like.
The RLC layer process may include: error correction is performed through an Automatic Repeat reQuest (ARQ) mechanism, and data is segmented, concatenated, reordered, and the like.
Step 204: and the first access network equipment sends second data transmission information to the anchor access network equipment, wherein the second data transmission information carries the first identifier and the first processed uplink data.
Optionally, there are two steps 201a and 201b before step 204.
Step 201 a: and establishing a common channel between the anchor access network equipment and the first access network equipment.
Step 201 b: and channel configuration information for data transmission is configured between the anchor access network equipment and the first access network equipment.
Alternatively, step 201a and step 201b may be performed simultaneously or one of them may be performed arbitrarily.
Optionally, in step 204, the first access network device sends the second data transmission information to the anchor access network device through the following two manners:
the first method comprises the following steps: the first access network device sends the second data transmission information to the anchor access network device by using the pre-established common channel in step 201a and/or the pre-configured channel configuration information in step 201 b.
Step 201a enables data transmission between the anchor access network device and the first access network device through the established common channel. And all data packets of the third state terminal equipment between the anchor access network equipment and the first access network equipment can be transmitted through the common channel.
In step 201b, channel configuration information for data transmission of the third-state terminal device is configured, where the channel configuration information includes channel configuration parameters and index information, and the channel configuration parameters include at least one of a logical channel number, an MAC layer, RLC layer configuration information, and PDCP layer configuration information used by the terminal device, or a combination thereof. The index information is used for indicating the channel configuration parameters.
The first access network device reduces the transmission delay of the data transmission between the first access network device and the anchor access network device through the pre-established common channel and/or the pre-configured channel configuration information for the data transmission of the third state terminal device, and has universality for the terminal device, reduces the channel and/or the channel configuration information for establishing the data transmission for different terminals, and saves signaling resources.
And the second method comprises the following steps: the first access network equipment sends a context request message to the anchor access network equipment, and carries second data transmission information in the context request message and sends the second data transmission information to the anchor access network equipment.
Step 205: and the anchor access network equipment performs second processing on the received uplink data.
Optionally, the second process includes at least one of the following processes: MAC layer processing, RLC layer processing and PDCP layer processing. Wherein, the PDCP layer processes the RRC message from the control plane and the IP packet from the data plane, and includes: header Compression and decompression of user plane data (only Robust Header Compression (ROHC) is used)), encryption and decryption of user plane and control plane data, integrity protection of control plane data, user plane and control plane data transmission, data reordering and retransmission processing during handover, and the like.
Step 206: and the anchor access network equipment sends the uplink data after the second processing to the core network equipment.
After the uplink data initiated by the terminal device is transmitted to the core network device, optionally, the core network device may also continue to initiate downlink data transmission.
Optionally, step 207: and after receiving the uplink data after the second processing, the core network equipment sends the downlink data to the anchor point access network equipment.
Optionally, step 208: and the anchor access network equipment performs third processing on the received downlink data.
Wherein the third process is similar to the second process and includes at least one of: MAC layer processing, RLC layer processing, and PDCP layer processing, which are not described herein again.
Optionally, step 209: and the anchor access network equipment sends third data transmission information to the first access network equipment. And the third data transmission information carries the first identifier and the downlink data after the third processing.
Optionally, step 210: and the first access network equipment performs fourth processing on the received downlink data.
Wherein the fourth process is similar to the first process and includes at least one of: physical layer processing, MAC layer processing and RLC layer processing; and the fourth process does not include decryption and/or integrity check, which is not described herein.
Optionally, step 211: and the first access network equipment sends the downlink data after the fourth processing to the terminal equipment. And the downlink data after the fourth processing is sent to the terminal equipment according to the second identifier, and the terminal equipment receives the data by using the second identifier.
Optionally, step 212: the terminal device does not monitor the second identifier any more based on certain conditions, and ends the data transmission process.
Optionally, the condition of the process of the terminal device ending data transmission is as follows:
(1) after receiving the downlink data, the terminal equipment does not receive the downlink data within a period of time and does not have any uplink data to be sent; or
(2) And the terminal equipment receives a release indication message sent by the base station, wherein the release indication message indicates that the terminal equipment does not monitor the second identifier any more.
In the embodiment of the application, when the anchor access network device and the first access network device need to communicate with the data sending device and the anchor access network device and the first access network device in the moving process of the third state terminal device, the functions and the data transmission flow of the anchor access network device and the first access network device are newly divided. According to the embodiment of the application, the first identification and the data which comprise the identification anchor point access network equipment are carried in the data transmission information, so that the first access network equipment and the anchor point access network equipment respectively process the received data, and the terminal equipment keeps the anchor point access network equipment unchanged in the moving process and can transmit the data; therefore, the signaling resource waste caused by key updating and data centralized processing of the terminal equipment due to the replacement of the anchor access network equipment in the traditional method is reduced; meanwhile, by pre-establishing a common channel and/or configuring channel configuration information for data transmission of the third-state terminal device, transmission delay of data transmission of the first access network device and the anchor access network device is reduced, the method has universality for the terminal device, and signaling resources are saved.
Referring to fig. 3, fig. 3 is another communication method provided in this embodiment, which may be applied to the network architecture shown in fig. 1, and the method includes:
step 301: as with step 201, it will not be described in detail here.
Step 302: and the core network equipment sends downlink data to the anchor access network equipment.
Step 303: the anchor access network device sends a paging message to the first access network device,
step 304: the first access network device sends a paging message to the terminal device.
The paging messages in steps 303 and 304 both carry indication messages to indicate whether the terminal device needs to perform state transition.
When the terminal device is in the third state, the anchor access network device is not notified when moving in the management area, and does not know which cell the terminal device is exactly in, so once the core network device sends data, the network side needs to know the specific location of the terminal device, the anchor access network device must first send a page to the terminal device in the management area, and then the first access network device sends a page to the terminal device. After receiving the paging, the terminal device initiates a paging response from the currently residing cell, and the first access network device receiving the paging response notifies the anchor access network device. From which the anchor access network device can know the exact location of the terminal device.
Step 305: and the terminal equipment judges whether the state conversion is needed or not according to the indication message carried in the paging message.
After receiving the indication message in the paging message, the terminal equipment executes the next step if judging that the state conversion is not needed; and if the state switching is needed, sending a connection recovery message to the first access network equipment so that the first access network equipment can carry out state switching for the terminal equipment.
In the prior art, the paging message received by the terminal device does not contain indication information indicating whether the state of the terminal device is converted. In the foregoing steps in the embodiment of the present application, the indication information for indicating whether the terminal device needs to perform the state transition is added to the paging message, so that the network side can more flexibly control the state transition of the terminal device.
Optionally, step 306: and the terminal equipment sends the first identifier to the first access network equipment corresponding to the current cell.
The network side sends data to the terminal device, and the terminal device may respond to the network side by carrying the first identifier in a connection recovery message, where the connection recovery message carries an indication to keep the state of the terminal device unchanged. The connection recovery message is generated by the terminal device, and may be an RRC connection continuation message, an RRC connection recovery message, or an area update message. The first identifier is pre-assigned to the terminal device by the anchor access network device and includes an identifier for identifying the anchor access network device and an identifier for identifying the terminal device in the anchor access network device.
Optionally, the connection recovery message carries a channel information index configured in advance by the terminal device and is sent to the first access network device. Alternatively, the first identifier may be carried in a MAC header or a MAC control element, so as to notify the first access network device to maintain the state of the terminal device.
In this embodiment, the terminal device is in the third state, the terminal device is in the connected state before the terminal device is in the third state, and the access network device corresponding to the cell where the terminal device is located is the anchor access network device in the connected state. When the terminal equipment enters a third state from a connection state, the anchor access network equipment configures a management area for the terminal equipment, wherein the management area comprises a cell of the terminal equipment accessed to the anchor access network equipment and one or more other cells except the cell.
Before this, the terminal device needs to send a preamble sequence to the base station, where the preamble sequence is used to notify the first access network device to allocate resources to the terminal device according to the preamble sequence, and the terminal device transmits the first identifier by using the resources after receiving the resources. Meanwhile, the first radio access network allocates the second identifier to the terminal device when allocating the transmission resource. And the second identifier is a dedicated identifier which is allocated to the terminal by the base station and enables the terminal equipment to be used in the current cell.
Optionally, step 307: the first access network device sends the first identifier to the anchor access network device.
Optionally, step 308: the anchor access network equipment judges whether the terminal equipment is accessed from the first access network equipment or not, and performs first processing on downlink data sent by the core network equipment.
In step 308, if the anchor access network device determines that the terminal device is accessed from the first access network device, the anchor access network device performs a first process on the downlink data sent by the core network device. Optionally, the first processing includes at least one of: MAC layer processing, RLC layer processing and PDCP layer processing. The first processing in this step is similar to the second processing in step 205 in the previous embodiment, and is not described herein again.
Optionally, step 309: and the anchor access network equipment sends first data transmission information to the first access network equipment, wherein the first data transmission information carries the first identifier and the first processed downlink data.
Optionally, there are two steps 301a and 301b before step 309. Step 301a is the same as step 201a, and step 301b is the same as step 201b, and will not be described in detail.
Optionally, in step 309, the anchor access network device sends the first data transmission information to the first access network device through the following two ways:
the first method comprises the following steps: the anchor access network device sends the first data transmission information to the first access network device by using the pre-established common channel in step 301a and/or the pre-configured channel configuration information in step 301 b.
Similar to the previous embodiment of the present application, the anchor access network device reduces the transmission delay of the first access network device and the anchor access network device for data transmission through the pre-established common channel and/or the pre-configured channel configuration information for the data transmission of the third state terminal device, and has universality for the terminal device, reduces the channel and/or the channel configuration information for establishing data transmission for different terminals, and saves signaling resources.
And the second method comprises the following steps: the anchor access network equipment sends a context request message to the first access network equipment, carries the first data transmission information in the context request message and sends the context request message to the first access network equipment.
Optionally, the first data transmission information further carries a channel configuration index of the terminal device.
Optionally, step 310: and the first access network equipment performs second processing on the received downlink data according to the channel configuration information of the terminal equipment.
After receiving the first identifier sent by the terminal device, the first access network device needs to send the first identifier to the terminal device again so that the terminal device can determine that the first access network device receives the first identifier. After receiving the first identifier, the terminal equipment confirms that the second identifier is used as a special identifier in the own cell.
Meanwhile, the first access network device performs second processing on downlink data carried in the received first data transmission information according to the channel configuration of the terminal device, wherein the channel configuration is obtained through the following three ways:
the first method comprises the following steps: reading predefined channel configuration information, for example, the first access network device presets predetermined channel configuration information for data transmission of the third state terminal device;
and the second method comprises the following steps: and receiving the channel configuration index from the terminal equipment, and determining the channel configuration information of the terminal equipment according to the channel configuration index.
Optionally, the anchor access network device pre-configures a channel configuration index for the terminal device, and sends the channel configuration index to the terminal device in step 301, and in step 301b, the first access network device obtains the channel configuration index and the channel configuration parameter from the anchor access network device, and the first access network device determines the channel configuration parameter used by the terminal device according to the channel configuration index received from the terminal device.
And the third is that: and acquiring channel configuration information from a downlink data packet header sent by the anchor access network equipment.
Optionally, the second processing includes at least one of: physical layer processing, MAC layer processing and RLC layer processing; and the second processing does not include decryption and/or integrity checking. The second processing in this step is similar to the first processing in step 203 in the previous embodiment, and is not described herein again.
Optionally, step 311: and the first access network equipment sends the downlink data after the second processing to the terminal equipment.
Therefore, the downlink data that the network side wants to send to the terminal device is sent to the terminal device by the method of the embodiment of the present application. If the terminal device has data to transmit to the network-side device, the following steps may be performed.
Optionally, step 312: and the terminal equipment sends uplink data to the first access network equipment.
Since the terminal device has already sent the first identifier to the first access network device and the anchor access network device in step 306, the terminal device does not need to send the first identifier at the same time if it wants to send uplink data again.
Optionally, step 313: and the first access network equipment performs third processing on the received uplink data.
The third process is similar to the second process in this embodiment, and is not described herein again.
Optionally, step 314: and the first access network equipment sends second data transmission information to the anchor access network equipment, wherein the second data transmission information carries the first identifier and the uplink data after the third processing.
Optionally, step 315: and the anchor access network equipment performs fourth processing on the received uplink data.
The fourth process is similar to the first process in this embodiment, and is not described herein again.
Optionally, step 316: and the anchor access network equipment sends the uplink data after the fourth processing to the core network equipment.
Optionally, step 317: as with step 212, this will not be described in detail.
In the embodiment of the application, the anchor access network device and the first access network device control whether the terminal device enters state transition or not through paging, trigger data uplink access, and send data to the terminal device before or at the same time of context switching of the terminal device. Compared with the prior art, the method and the device increase the flexibility of controlling the state transition of the terminal equipment at the network side. Meanwhile, on the basis of the previous embodiment, the embodiment of the application enables the anchor point access network device to be kept unchanged and data transmission to be performed in the moving process of the terminal device in the third state, avoids signaling and time delay overhead caused by transferring context first and then transmitting data in the traditional method, and has universality for data transmission of the terminal device.
Referring to fig. 4, fig. 4 is a communication apparatus 400 as a first access network device according to an embodiment of the present application, which includes:
a receiving unit 401, configured to receive first data transmission information sent by a terminal device, where the first data transmission information carries a first identifier and uplink data, and the first identifier includes an identifier for identifying an anchor access network device and an identifier for identifying the terminal device in the anchor access network device.
A processing unit 402, configured to perform a first process on the received uplink data according to the channel configuration information of the terminal device, where the first process includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the first processing does not include decryption and/or integrity checking.
A sending unit 403, configured to send second data transmission information to the anchor access network device, where the second data transmission information carries the first identifier and the uplink data after the first processing by the processing unit.
In a possible implementation manner, the processing unit 402 is further configured to pre-establish a common channel with the anchor access network device and/or pre-configure channel configuration information for data transmission by a third state terminal device; a sending unit 403, further configured to send the second data transmission information to the anchor access network device by using the common channel and/or the channel configuration information.
In a possible implementation manner, the sending unit 403 is further configured to send a context request message to the anchor access network device, and send the second data transmission information to the anchor access network device by being carried in the context request message.
Optionally, the channel configuration information may be obtained in three ways, and specific contents of the three cases may refer to the related contents in step 203, which is not described herein again.
In a possible implementation manner, the receiving unit 401 is further configured to receive third data transmission information sent by the anchor access network device; the third data transmission information carries the first identifier and the downlink data after the third processing, where the third processing may refer to related contents in step 208, and is not described herein again.
The processing unit 402 is further configured to perform fourth processing on the received downlink data after the third processing, where the fourth processing may refer to relevant contents in the step 210, and is not described herein again. The sending unit 403 is further configured to send the fourth processed downlink data to the terminal device according to a second identifier, where the second identifier is a dedicated identifier used by the terminal device in the current cell.
In this embodiment, the receiving unit carries a first identifier and data including identification of the anchor access network device in the data transmission information, so that the first access network device and the anchor access network device respectively process the received data, and the terminal device keeps the anchor access network device unchanged and can perform data transmission in the moving process; therefore, the signaling resource waste caused by key updating and data centralized processing of the terminal equipment due to the replacement of the anchor access network equipment in the traditional method is reduced; meanwhile, a common channel is pre-established and/or channel configuration information used for data transmission of the third-state terminal device is configured through the processing unit, so that the transmission time delay of the data transmission of the first access network device and the anchor access network device is reduced, the universality is realized for the terminal device, and the signaling resource is saved.
Referring to fig. 5, fig. 5 is a terminal device 500 according to an embodiment of the present application, which includes:
a receiving unit 501, configured to receive a first message sent by an anchor access network device, where the first message carries a first identifier, and the first identifier includes an identifier used for identifying the anchor access network device and an identifier used for identifying the terminal device in the anchor access network device;
a sending unit 502, configured to send first data transmission information to a first access network device, where the first data transmission information carries a first identifier and uplink data.
Optionally, the first message further carries a channel configuration index.
In a possible implementation manner, the receiving unit 501 is further configured to receive, by using a second identifier, downlink data that is fourth processed by the first access network device; the fourth process may refer to the related contents in step 210, and is not described herein again. The second identifier is a dedicated identifier used by the terminal device in the current cell.
In a possible implementation manner, the processing unit 503 is configured to control the receiving unit 501 to no longer listen to the second identifier and end the data transmission process based on the first condition.
Optionally, the first condition includes: after receiving the downlink data, the receiving unit 501 does not receive the downlink data any more within a period of time, and does not have any uplink data to be sent; or the receiving unit 501 receives a release indication message, where the release indication message indicates that the receiving unit 501 no longer listens for the second identifier.
Referring to fig. 6, fig. 6 is a communication apparatus 600 as an anchor access network device according to an embodiment of the present application, which includes:
a sending unit 601, configured to send a first message to a terminal device, where the first message carries a first identifier, and the first identifier includes an identifier for identifying the anchor access network device and an identifier for identifying the terminal device in the anchor access network device.
A receiving unit 602, configured to receive second data transmission information sent by a first access network device, where the second data transmission information carries the first identifier and uplink data after first processing performed by the first access network device, and the first processing includes at least one of the following: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the first processing does not include decryption and/or integrity checking.
A processing unit 603, configured to perform second processing on the uplink data after the first processing, where the second processing includes at least one of: medium access control layer processing, radio link layer control layer processing, and packet data convergence protocol layer processing.
The sending unit 601 is further configured to send the second processed uplink data to a core network device.
In a possible implementation manner, the processing unit 603 is further configured to pre-establish a common channel with the first access network device and/or pre-configure channel configuration information for data transmission by a third state terminal device; a receiving unit 602, further configured to receive, by using the common channel or the channel configuration information, the second data transmission information sent by the first access network device.
In a possible implementation manner, the receiving unit 602 is further configured to receive a context request message sent by the first access network device, where the second data transmission information is carried in the context request message.
In a possible implementation manner, the receiving unit 602 is further configured to receive downlink data sent by the core network device;
the processing unit is further configured to perform third processing on the received downlink data, where the third processing may refer to relevant contents in step 208, and is not described herein again. A sending unit 601, further configured to send third data transmission information to the first access network device, where the third data transmission information carries the first identifier and the third processed downlink data.
Referring to fig. 7, fig. 7 is a terminal device 700 provided in an embodiment of the present application, which includes:
a receiving unit 701, configured to receive a first message sent by an anchor access network device, where the first message carries a first identifier, and the first identifier includes an identifier used for identifying the anchor access network device and an identifier used for identifying the terminal device in the anchor access network device; and the paging message is used for receiving the paging message sent by the first access network equipment, and the paging message carries an indication message for indicating whether state conversion is needed or not.
A processing unit 702, configured to determine whether to perform state transition according to the indication message.
Optionally, the first message further carries a channel configuration index.
In a possible implementation manner, the processing unit 702 is further configured to determine that state transition is not required according to the indication message; a sending unit 703 is configured to send the first identifier to the first access network device.
Optionally, the first identifier is carried in a connection recovery message, and the connection recovery message also carries an indication for keeping the state of the terminal device unchanged. Alternatively, the first identifier is carried in a mac header or a mac control element.
In a possible implementation manner, the receiving unit 701 is further configured to receive, by using a second identifier, downlink data after second processing by the first access network device; the second process may refer to the related contents in step 310, and is not described herein again. The second identity is a dedicated identity used by the terminal device in the current cell.
In a possible implementation manner, the sending unit 703 is configured to send uplink data to the first access network device.
In a possible implementation manner, the processing unit 702 is further configured to control, based on the first condition, the receiving unit 701 to no longer listen to the second identifier and end the data transmission process.
Optionally, the first condition includes: after the receiving unit 701 receives the downlink data, the downlink data is not received any more within a period of time, and no uplink data needs to be sent; or the receiving unit 701 receives a release indication message, where the release indication message indicates that the receiving unit 701 no longer listens to the second identifier.
In this embodiment, the receiving unit receives the paging message with the state transition, so that the processing unit determines whether to perform the state transition according to the indication message.
Referring to fig. 8, fig. 8 is a communication apparatus 800 as a first access network device according to an embodiment of the present application, which includes:
a receiving unit 801, configured to receive a paging message sent by an anchor access network device, where the paging message carries an indication message to indicate whether a terminal device needs to perform state transition.
A sending unit 802, configured to send the paging message to the terminal device.
In a possible implementation manner, the receiving unit 801 is configured to receive a first identifier sent by the terminal device, where the first identifier includes an identifier used for identifying the anchor access network device and an identifier used for identifying the terminal device in the anchor access network device; the sending unit 802 is configured to send the first identifier to the anchor access network device.
In a possible implementation manner, the receiving unit 801 is configured to receive first data transmission information sent by the anchor access network device, where the first data transmission information carries the first identifier and downlink data after first processing by the anchor access network device, where the first processing may refer to relevant content in the step 308, and is not described herein again.
In a possible implementation manner, the processing unit 803 is configured to pre-establish a common channel with the first access network device and/or pre-configure channel configuration information for data transmission by a third state terminal device; wherein, the receiving unit 801 is further configured to receive the first data transmission information sent by the anchor access network device by using the common channel and/or the channel configuration information.
In a possible implementation manner, the receiving unit 801 is configured to receive a context request message sent by the anchor access network device, where the first data transmission information is carried in the context request message.
Optionally, the first data transmission information further carries a channel configuration index of the terminal device.
In a possible implementation manner, the processing unit 803 is configured to perform second processing on the downlink data after the first processing according to the channel configuration information of the terminal device, where the second processing may refer to relevant contents in the step 310, and is not described herein again.
Optionally, the channel configuration information may be obtained in three ways, and specific contents of the three cases may refer to the related contents in step 310, which is not described herein again.
In a possible implementation manner, the sending unit 802 is further configured to send the second processed downlink data to the terminal device according to a second identifier, where the second identifier is a dedicated identifier used by the terminal device in a current cell; the receiving unit 801 is further configured to receive uplink data sent by the terminal device.
In a possible implementation manner, the processing unit 803 is further configured to perform third processing on the received uplink data, where the third processing may refer to relevant contents in step 313 above, and is not described herein again. The sending unit 802 is further configured to send second data transmission information to the anchor access network device, where the second data transmission information carries the first identifier and the third processed uplink data.
In the embodiment of the application, the first access network device controls whether the terminal device enters the state transition or not by paging, triggers the uplink data access, and sends the data to the terminal device before or at the same time of context switching of the terminal device. Compared with the prior art, the method and the device increase the flexibility of controlling the state transition of the terminal equipment at the network side. Meanwhile, on the basis of the previous embodiment, the embodiment of the application enables the anchor point access network device to be kept unchanged and data transmission to be performed in the moving process of the terminal device in the third state, avoids signaling and time delay overhead caused by transferring context first and then transmitting data in the traditional method, and has universality for data transmission of the terminal device.
Referring to fig. 9, fig. 9 is a communication apparatus 900 as an anchor access network device according to an embodiment of the present application, which includes:
a sending unit 901, configured to send a first message to a terminal device, where the first message carries a first identifier, and the first identifier includes an identifier for identifying the anchor access network device and an identifier for identifying the terminal device in the anchor access network device.
A receiving unit 902, configured to receive downlink data sent by a core network device.
The sending unit 901 is further configured to send a paging message to the first access network device, where the paging message carries an indication message to indicate whether the terminal device needs to perform state transition.
In a possible implementation manner, the receiving unit 902 is further configured to receive the first identifier sent by the first access network device; a processing unit 903, configured to determine whether the terminal device is accessed from the first access network device, and perform a first process on downlink data received from the core network device, where the first process may refer to relevant contents in step 308, which is not described herein again.
In a possible implementation manner, the sending unit 901 is configured to send first data transmission information to the first access network device, where the first data transmission information carries the first identifier and the first processed downlink data.
In a possible implementation manner, the processing unit 903 is configured to pre-establish a common channel with the first access network device and/or pre-configure channel configuration information for data transmission by a third state terminal device; the sending unit 901 is configured to send the first data transmission information to the first access network device by using the common channel and/or the channel configuration information.
In a possible implementation manner, the sending unit 901 is configured to send a context request message to the first access network device, where the first data transmission information is carried in the context request message.
In a possible implementation manner, the receiving unit 902 is configured to receive second data transmission information sent by the first access network device, where the second data transmission information carries the first identifier and uplink data after the third processing, where the third processing may refer to relevant content in step 313 above, and is not described herein again.
A processing unit 903, configured to perform fourth processing on the uplink data after the third processing, where the fourth processing includes at least one of the following: MAC layer processing, RLC layer processing and PDCP layer processing.
A sending unit 901, configured to send the fourth processed uplink data to the core network device.
Fig. 10 is another schematic diagram of a communication device 1000 provided according to an embodiment of the present application. As shown in fig. 10, the apparatus 1000 may be the first access network device or the anchor access network device in the foregoing embodiment, and includes: input interface 1001, output interface 1002, processor 1003, and memory 1004. The input interface 1001, output interface 1002, processor 1003 and memory 1004 may be connected by a bus system 1005. Optionally, the input interface and the output interface may be omitted.
The memory 1004 is used to store programs, instructions or code. The processor 1003 is configured to execute the program, the instruction, or the code in the memory 1004 to control the input interface 1001 to receive the signal, control the output interface 1002 to send the signal, and implement each step and function implemented by the first access network device or the anchor access network device in the embodiments corresponding to fig. 2 and fig. 3, which are not described herein again. As described above, for the specific embodiments of the input interface 1001, the output interface 1002 and the processor 1003, reference may be made to the specific descriptions in the receiving units 401, 602, 801, and 902, the sending units 403, 601, 802, and 901, and the processing units 402, 603, 803, and 903 in the embodiments of fig. 4, 6, 8, and 9, which is not described herein again.
It should be understood that, in the embodiment of the present application, the processor 1003 may be a Central Processing Unit (CPU), and may also be other general-purpose processors, Digital Signal Processors (DSP), Application Specific Integrated Circuits (ASIC), off-the-shelf programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 1004 may include a read-only memory and a random access memory, and provides instructions and data, respectively, to the processor 1003. A portion of the memory 1004 may also include non-volatile random access memory. For example, the memory 1004 may also store device type information.
The bus system 1005 may include a power bus, a control bus, a status signal bus, and the like, in addition to a data bus. For clarity of illustration, however, the various buses are labeled as a bus system in the figures.
In implementation, the steps of the methods shown in fig. 2 and/or fig. 3 may be performed by instructions in the form of hardware, integrated logic circuits or software in the processor 1003. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software elements in a processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage media are respectively located in the memory 1004, and the processor 1003 reads the information in the memory 1004, and completes the steps of the method of fig. 2 and/or 3 in conjunction with the hardware thereof. To avoid repetition, it is not described in detail here.
It is to be noted that, in a specific embodiment, the processing units in fig. 4, fig. 6, fig. 8, and fig. 9 may be implemented by the processor 1003 similar to fig. 10, the transmitting unit may be implemented by a transmitter, and the receiving unit may be implemented by a receiver.
Fig. 11 is a block diagram illustrating a terminal device 1100 according to an example embodiment. The terminal device 1100 may be a mobile phone, a computer, a tablet device, etc.
Referring to fig. 11, terminal device 1100 may include one or more of the following components: a receiver 1101, a transmitter 1102, a processing component 1103, a memory 1104, a power component 1106, a multimedia component 1108, an audio component 1110, an input/output (I/O) interface 1112, a sensor component 1114. And the above components may be connected by a system bus.
The processing component 1103 typically controls overall operations of the terminal device 1100, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1103 may include one or more processors 1120 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 1103 may include one or more modules that facilitate interaction between the processing component 1103 and other components. For example, the processing component 1103 may include a multimedia module to facilitate interaction between the multimedia component 1108 and the processing component 1103.
Memory 1104 is configured to store various types of data to support operation at terminal device 1100. Examples of such data include instructions for any application or method operating on terminal device 1100, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1104 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
A power component 1106 provides power to the various components of terminal device 1100. Power components 1106 can include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for terminal device 1100.
The multimedia component 1108 includes a screen between the terminal device 1100 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1108 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the terminal device 1100 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 1110 is configured to output and/or input audio signals. For example, the audio component 1110 includes a Microphone (MIC) configured to receive external audio signals when the terminal device 1100 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 1104 or transmitted via the communication component 1116. In some embodiments, the audio assembly 1110 further includes a speaker for outputting audio signals.
The I/O interface 1112 provides an interface between the processing component 1103 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
Sensor assembly 1114 includes one or more sensors for providing various aspects of state estimation for terminal device 1100. For example, sensor component 1114 can detect an open/closed state of terminal device 1100, the relative positioning of components, such as a display and keypad of terminal device 1100, sensor component 1114 can also detect a change in the position of terminal device 1100 or a component of terminal device 1100, the presence or absence of user contact with terminal device 1100, orientation or acceleration/deceleration of terminal device 1100, and a change in the temperature of terminal device 1100. The sensor assembly 1114 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1114 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1114 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The receiver 1101 and the transmitter 1102 are configured to facilitate communication between the terminal device 1100 and other devices in a wired or wireless manner. Terminal device 1100 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
In an exemplary embodiment, the terminal device 1100 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
It is to be noted that, in a specific embodiment, the processing unit in fig. 5 or the processing unit in fig. 7 may be implemented by the processor 1120 in fig. 11, the transmitting unit in fig. 5 or the transmitting unit in fig. 7 may be implemented by the transmitter 1102 in fig. 11, and the receiving unit in fig. 5 or the receiving unit in fig. 7 may be implemented by the receiver 1101 in fig. 11.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (31)

  1. A method of communication, the method comprising:
    a first access network device receives first data transmission information sent by a terminal device, wherein the first data transmission information carries a first identifier and uplink data, and the first identifier comprises an identifier for identifying an anchor access network device and an identifier for identifying the terminal device in the anchor access network device;
    the first access network device performs first processing on the received uplink data according to the channel configuration information of the terminal device, where the first processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the first processing does not include decryption and/or integrity checking;
    and the first access network equipment sends second data transmission information to the anchor access network equipment, wherein the second data transmission information carries the first identifier and the first processed uplink data.
  2. The method of claim 1, wherein a common channel is pre-established and/or channel configuration information for data transmission by a third state terminal device is pre-configured between the anchor access network device and the first access network device before the first access network device sends second data transmission information to the anchor access network device, and the first access network device sends the second data transmission information to the anchor access network device using the common channel and/or the channel configuration information.
  3. The method of claim 1 or 2, wherein the first access network device sends a context request message to the anchor access network device, and sends the second data transmission information to the anchor access network device with being carried in the context request message.
  4. The method of any of claims 1-3, wherein the channel configuration information is obtained by at least one of:
    reading the predefined channel configuration information;
    receiving a channel configuration index from the terminal equipment, and determining the channel configuration information according to the channel configuration index;
    obtaining the channel configuration information from the anchor access network device.
  5. The method of any of claims 1-4, wherein after the first access network device sends second data transmission information to the anchor access network device, the method further comprises:
    the first access network equipment receives third data transmission information sent by the anchor access network equipment; the third data transmission information carries the first identifier and the third processed downlink data, and the third processing includes at least one of the following: medium access control layer processing, wireless link layer control layer processing and packet data convergence protocol layer processing;
    the first access network performs fourth processing on the received downlink data after the third processing, where the fourth processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the fourth processing does not include decryption and/or integrity checking;
    and the first access network equipment sends the fourth processed data to the terminal equipment according to a second identifier, wherein the second identifier is a special identifier used by the terminal equipment in the current cell.
  6. A method of communication, the method comprising:
    a terminal device receives a first message sent by an anchor access network device, wherein the first message carries a first identifier, and the first identifier comprises an identifier for identifying the anchor access network device and an identifier for identifying the terminal device in the anchor access network device;
    the terminal equipment sends first data transmission information to the first access network equipment, wherein the first data transmission information carries a first identifier and uplink data.
  7. The method of claim 6, wherein the first message further carries a channel configuration index.
  8. The method of claim 6 or 7, wherein after the terminal device sends the first data transmission information to the first access network device, the method further comprises:
    the terminal equipment receives downlink data which is processed by the first access network equipment in a fourth way according to the second identification;
    wherein the fourth processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the fourth processing does not include decryption and/or integrity checking; the second identifier is a dedicated identifier used by the terminal device in the current cell.
  9. The method of claim 8, wherein the method further comprises:
    and the terminal equipment does not monitor the second identifier any more based on the first condition and ends the data transmission process.
  10. The method of claim 9, wherein the first condition comprises:
    after receiving the downlink data, the terminal equipment does not receive the downlink data within a period of time and does not have any uplink data to be sent; or
    And the terminal equipment receives a release indication message, and the release indication message indicates that the terminal equipment does not monitor the second identifier any more.
  11. A method of communication, the method comprising:
    the method comprises the steps that anchor access network equipment sends a first message to terminal equipment, wherein the first message carries a first identifier, and the first identifier comprises an identifier used for identifying the anchor access network equipment and an identifier used for identifying the terminal equipment in the anchor access network equipment;
    the anchor access network device receives second data transmission information sent by a first access network device, where the second data transmission information carries the first identifier and uplink data after first processing performed by the first access network device, and the first processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the first processing does not include decryption and/or integrity checking;
    and the anchor access network device performs second processing on the first processed uplink data and sends the second processed uplink data to core network equipment, wherein the second processing includes at least one of the following: medium access control layer processing, radio link layer control layer processing, and packet data convergence protocol layer processing.
  12. The method of claim 11, wherein the first message further carries a channel configuration index.
  13. The method of claim 11 or 12, wherein before the anchor access network device receives the second data transmission information sent by the first access network device, a common channel is pre-established between the anchor access network device and the first access network device and/or channel configuration information for data transmission by a third state terminal device is pre-configured, and the anchor access network device receives the second data transmission information sent by the first access network device by using the common channel or the channel configuration information.
  14. The method of any of claims 11-13, wherein the anchor access network device receives a context request message sent by the first access network device, and wherein the second data transmission information is carried in the context request message.
  15. The method of any of claims 11-14, wherein after the anchor access network device transmits the second processed uplink data to the core network device, the method further comprises:
    the anchor access network equipment receives downlink data sent by the core network equipment;
    the anchor access network device performs third processing on the received downlink data, where the third processing includes at least one of: medium access control layer processing, wireless link layer control layer processing and packet data convergence protocol layer processing;
    and the anchor access network device sends third data transmission information to the first access network device, wherein the third data transmission information carries the first identifier and the downlink data after the third processing.
  16. A communication apparatus as a first access network device, the apparatus comprising:
    a receiving unit, configured to receive first data transmission information sent by a terminal device, where the first data transmission information carries a first identifier and uplink data, and the first identifier includes an identifier for identifying an anchor access network device and an identifier for identifying the terminal device in the anchor access network device;
    a processing unit, configured to perform first processing on the received uplink data according to the channel configuration information of the terminal device, where the first processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the first processing does not include decryption and/or integrity checking;
    a sending unit, configured to send second data transmission information to the anchor access network device, where the second data transmission information carries the first identifier and the uplink data after the first processing by the processing unit.
  17. The apparatus of claim 16,
    the processing unit is further configured to pre-establish a common channel with the anchor access network device and/or pre-configure channel configuration information for data transmission of a third-state terminal device;
    the sending unit is further configured to send the second data transmission information to the anchor access network device by using the common channel and/or the channel configuration information.
  18. The apparatus of claim 16 or 17,
    the sending unit is further configured to send a context request message to the anchor access network device, and send the second data transmission information to the anchor access network device while carrying the second data transmission information in the context request message.
  19. The apparatus of any one of claims 16-18, wherein the channel configuration information is obtained by at least one of:
    reading the predefined channel configuration information;
    receiving a channel configuration index from the terminal equipment, and determining the channel configuration information of the terminal equipment according to the channel configuration index;
    obtaining the channel configuration information from the anchor access network device.
  20. The apparatus of any one of claims 16-19,
    the receiving unit is further configured to receive third data transmission information sent by the anchor access network device; the third data transmission information carries the first identifier and the third processed downlink data, and the third processing includes at least one of the following: medium access control layer processing, wireless link layer control layer processing and packet data convergence protocol layer processing;
    the processing unit is further configured to perform fourth processing on the received third processed downlink data, where the fourth processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the fourth processing does not include decryption and/or integrity checking;
    the sending unit is further configured to send the fourth processed downlink data to the terminal device according to a second identifier, where the second identifier is a dedicated identifier used by the terminal device in the current cell.
  21. A terminal device, comprising:
    a receiving unit, configured to receive a first message sent by an anchor access network device, where the first message carries a first identifier, and the first identifier includes an identifier used for identifying the anchor access network device and an identifier used for identifying the terminal device in the anchor access network device;
    a sending unit, configured to send first data transmission information to a first access network device, where the first data transmission information carries a first identifier and uplink data.
  22. The terminal device of claim 21, wherein the first message further carries a channel configuration index.
  23. The terminal device according to claim 21 or 22,
    the receiving unit is further configured to receive, by using a second identifier, downlink data that is fourth processed by the first access network device;
    wherein the fourth processing includes at least one of: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the fourth processing does not include decryption and/or integrity checking; the second identifier is a dedicated identifier used by the terminal device in the current cell.
  24. The terminal device of claim 23, wherein the terminal device further comprises:
    and the processing unit is used for controlling the receiving unit not to monitor the second identifier any more and ending the data transmission process based on the first condition.
  25. The terminal device of claim 24, wherein the first condition comprises:
    after receiving the downlink data, the receiving unit does not receive the downlink data within a period of time, and does not have any uplink data to be sent; or
    And the receiving unit receives a release indication message, wherein the release indication message indicates that the receiving unit does not monitor the second identifier any more.
  26. A communications apparatus that operates as an anchor access network device, the apparatus comprising:
    a sending unit, configured to send a first message to a terminal device, where the first message carries a first identifier, and the first identifier includes an identifier for identifying the anchor access network device and an identifier for identifying the terminal device in the anchor access network device;
    a receiving unit, configured to receive second data transmission information sent by a first access network device, where the second data transmission information carries the first identifier and uplink data after first processing performed by the first access network device, and the first processing includes at least one of the following: physical layer processing, medium access control layer processing and radio link layer control layer processing; and the first processing does not include decryption and/or integrity checking;
    a processing unit, configured to perform second processing on the uplink data after the first processing, where the second processing includes at least one of: medium access control layer processing, wireless link layer control layer processing and packet data convergence protocol layer processing;
    the sending unit is further configured to send the second processed uplink data to a core network device.
  27. The apparatus of claim 26, wherein the first message further carries a channel configuration index.
  28. The apparatus of claim 26 or 27,
    the processing unit is further configured to pre-establish a common channel with the first access network device and/or pre-configure channel configuration information for data transmission of a third state terminal device;
    the receiving unit is further configured to receive, by using the common channel or the channel configuration information, the second data transmission information sent by the first access network device.
  29. The apparatus according to any one of claims 26 to 28,
    the receiving unit is further configured to receive a context request message sent by the first access network device, where the second data transmission information is carried in the context request message.
  30. The apparatus of claims 26-29,
    the receiving unit is further configured to receive downlink data sent by the core network device;
    the processing unit is further configured to perform third processing on the received downlink data, where the third processing includes at least one of: medium access control layer processing, wireless link layer control layer processing and packet data convergence protocol layer processing;
    the sending unit is further configured to send third data transmission information to the first access network device, where the third data transmission information carries the first identifier and the third processed downlink data.
  31. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1-15.
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